There are two class.：
public class CategoryModel implements Serializable
{
private int id;
private String name;
private int parentCategoryId;
private CategoryModel parentCategory;
// setter/getter
......
}
public class SoftwareModel implements Serializable
{
private int id;
private String name;
private CategoryModel category;
// setter/getter
......
}
The xml config file of ibatis:
<sqlMapConfig>
<settings
cacheModelsEnabled="true"
enhancementEnabled="true"
lazyLoadingEnabled="true"
useStatementNamespaces="true"/>
<sqlMap resource="com/demo/category/Category.xml"/>
<sqlMap resource="com/demo/software/Software.xml"/>
</sqlMapConfig>
Category.xml
<sqlMap namespace="Category">
<typeAlias alias="category"
type="com.demo.category.model.CategoryModel" />
<cacheModel type="OSCACHE" id="category-cache">
<flushInterval minutes="10" />
<flushOnExecute statement="Category.addCartory"/>
</cacheModel>
<resultMap class="category" id="categoryResult">
<result property="id" column="FID" javaType="int"
jdbcType="int"
nullValue="0" />
<result property="name" column="FName" javaType="String"
jdbcType="nvarchar" />
<result property="parentCategoryId" column="FParentID"
javaType="int" jdbcType="int"
nullValue="0" />
<!-- TODO:this line config will cause throwing exception
when call softwareDao.getSoftwareById -->
<result property="parentCategory" column="FParentID"
select="Category.getCategoryById" />
</resultMap>
<select id="getCategoryById" resultMap="categoryResult"
parameterClass="int" cacheModel="category-cache">
SELECT * FROM t_categories
WHERE FID =#categoryId#
</select>
</sqlMap>
Software.xml
<sqlMap namespace="Software">
<typeAlias alias="software"
type="com.demo.software.model.SoftwareModel" />
<cacheModel type="OSCACHE" id="software-cache">
<flushInterval minutes="10" />
<flushOnExecute statement="Software.addSoftware"/>
</cacheModel>
<resultMap class="software" id="softwareResult">
<result property="id" column="FID" javaType="int"
jdbcType="int"
nullValue="0" />
<result property="name" column="FName" javaType="String"
jdbcType="nvarchar" />
<result property="category" column="FCategoryID"
select="Category.getCategoryById" />
</resultMap>
<select id="getSoftwareById" resultMap="softwareResult"
parameterClass="int" cacheModel="software-cache">
SELECT * FROM t_softwares
WHERE FID =#softwareId#
</select>
<select id="getSoftwareByName" resultMap="softwareResult"
parameterClass="string" cacheModel="software-cache">
SELECT * FROM t_softwares
WHERE FName =#name#
</select>
</sqlMap>
Use ibatis with springframwork:
<beans
xmlns="http://www.springframework.org/schema/beans";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.0.xsd";>
<bean id="messageProperties"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>classpath:properties/cms.properties</value>
</list>
</property>
</bean>
<bean id="cmsDbcpDataSource"
class="org.apache.commons.dbcp.BasicDataSource">
<property name="driverClassName">
<value>${cms.datasource.driverClassName}</value>
</property>
<property name="url">
<value>${cms.datasource.url}</value>
</property>
<property name="username">
<value>${cms.datasource.username}</value>
</property>
<property name="password">
<value>${cms.datasource.password}</value>
</property>
</bean>
<bean id="cmsSqlMapClient"
class="org.springframework.orm.ibatis.SqlMapClientFactoryBean">
<property name="configLocation">
<value>classpath:cms-sql-map-config.xml</value>
</property>
<property name="dataSource">
<ref bean="cmsDbcpDataSource"/>
</property>
</bean>
<bean id="cmsSqlMapClientTemplete"
class="org.springframework.orm.ibatis.SqlMapClientTemplate">
<property name="sqlMapClient">
<ref bean="cmsSqlMapClient"/>
</property>
</bean>
<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource">
<ref local="cmsDbcpDataSource" />
</property>
</bean>
<bean id="baseTxProxy" lazy-init="true"
class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean"
abstract="true">
<property name="transactionManager">
<ref local="transactionManager" />
</property>
<property name="transactionAttributes">
<props>
<prop
key="*">PROPAGATION_REQUIRED</prop>
<prop
key="create*">PROPAGATION_REQUIRED</prop>
<prop
key="add*">PROPAGATION_REQUIRED</prop>
<prop
key="delete*">PROPAGATION_REQUIRED</prop>
<prop
key="update*">PROPAGATION_REQUIRED</prop>
<prop
key="get*">PROPAGATION_REQUIRED</prop>
</props>
</property>
</bean>
<bean id="categoryDao"
class="com.demo.category.dao.impl.ibatis.CategoryDaoImpl">
<property name="cmsSqlMapClientTemplete">
<ref bean="cmsSqlMapClientTemplete" />
</property>
</bean>
<bean id="softwareDao"
class="com.demo.software.dao.impl.ibatis.SoftwareDaoImpl">
<property name="cmsSqlMapClientTemplete">
<ref bean="cmsSqlMapClientTemplete" />
</property>
</bean>
</beans>
This is the class:
public abstract class BaseDaoImpl
{
private SqlMapClientTemplate cmsSqlMapClientTemplete;
public SqlMapClientTemplate getCmsSqlMapClientTemplete()
{
return cmsSqlMapClientTemplete;
}
public void setCmsSqlMapClientTemplete(
SqlMapClientTemplate cmsSqlMapClientTemplete)
{
this.cmsSqlMapClientTemplete = cmsSqlMapClientTemplete;
}
}
public class SoftwareDaoImpl extends BaseDaoImpl implements SoftwareDao
{
@Override
public SoftwareModel getSoftwareById(int softwareId)
{
return (SoftwareModel)
getCmsSqlMapClientTemplete().queryForObject("Software.getSoftwareById", new
Integer(softwareId));
}
@Override
public SoftwareModel getSoftwareByName(String name)
{
return (SoftwareModel)
getCmsSqlMapClientTemplete().queryForObject("Software.getSoftwareByName",
name);
}
}
public class CategoryDaoImpl extends BaseDaoImpl implements CategoryDao
{
@Override
public CategoryModel getCategoryById(int categoryId)
{
return (CategoryModel)
getCmsSqlMapClientTemplete().queryForObject("Category.getCategoryById", new
Integer(categoryId));
}
@Override
public CategoryModel getCategoryByName(String name)
{
return (CategoryModel)
getCmsSqlMapClientTemplete().queryForObject("Category.getCategoryByName",
name);
}
}
Under code will cause throwing exception show in the end:
SoftwareModel model = softwareDao.getSoftwareById(111);//throw exception
SoftwareModel model = softwareDao.getSoftwareByName("aaa");// throw
exception
If I remove the config “<result property="parentCategory" column="FParentID"
select="Category.getCategoryById" />” in the file Category.xml.The code will
not throw exception.
But curiously, the code “CategoryModel model =
categoryDao.getCategoryById(273)” will not throw exception.
It is the stack with exception:
org.springframework.jdbc.UncategorizedSQLException: SqlMapClient operation;
uncategorized SQLException for SQL []; SQL state [HY010]; error code [0];
--- The error occurred in com/demo/software/Software.xml.
--- The error occurred while applying a result map.
--- Check the Software.softwareResult.
--- Check the result mapping for the 'category' property.
--- Cause: com.ibatis.common.jdbc.exception.NestedSQLException:
--- The error occurred in com/demo/category/Category.xml.
--- The error occurred while applying a result map.
--- Check the Category.categoryResult.
--- The error happened while setting a property on the result object.
--- Cause: java.sql.SQLException: Invalid state, the ResultSet object is
closed.; nested exception is
com.ibatis.common.jdbc.exception.NestedSQLException:
--- The error occurred in com/demo/software/Software.xml.
--- The error occurred while applying a result map.
--- Check the Software.softwareResult.
--- Check the result mapping for the 'category' property.
--- Cause: com.ibatis.common.jdbc.exception.NestedSQLException:
--- The error occurred in com/demo/category/Category.xml.
--- The error occurred while applying a result map.
--- Check the Category.categoryResult.
--- The error happened while setting a property on the result object.
--- Cause: java.sql.SQLException: Invalid state, the ResultSet object is
closed.
at
org.springframework.jdbc.support.SQLStateSQLExceptionTranslator.translate(SQLStateSQLExceptionTranslator.java:124)
at
org.springframework.jdbc.support.SQLErrorCodeSQLExceptionTranslator.translate(SQLErrorCodeSQLExceptionTranslator.java:322)
at
org.springframework.orm.ibatis.SqlMapClientTemplate.execute(SqlMapClientTemplate.java:212)
at
org.springframework.orm.ibatis.SqlMapClientTemplate.queryForObject(SqlMapClientTemplate.java:271)
at
com.shareweb.cms.component.software.dao.impl.ibatis.SoftwareDaoImpl.getSoftwareById(SoftwareDaoImpl.java:23)
at
com.shareweb.cms.importdata.AdvertExcelImportManagerImplTest.testImportData(AdvertExcelImportManagerImplTest.java:54)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at junit.framework.TestCase.runTest(TestCase.java:154)
at junit.framework.TestCase.runBare(TestCase.java:127)
at junit.framework.TestResult$1.protect(TestResult.java:106)
at junit.framework.TestResult.runProtected(TestResult.java:124)
at junit.framework.TestResult.run(TestResult.java:109)
at junit.framework.TestCase.run(TestCase.java:118)
at junit.framework.TestSuite.runTest(TestSuite.java:208)
at junit.framework.TestSuite.run(TestSuite.java:203)
at
org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:130)
at
org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
Caused by: com.ibatis.common.jdbc.exception.NestedSQLException:
--- The error occurred in com/demo/software/Software.xml.
--- The error occurred while applying a result map.
--- Check the Software.softwareResult.
--- Check the result mapping for the 'category' property.
--- Cause: com.ibatis.common.jdbc.exception.NestedSQLException:
--- The error occurred in com/demo/category/Category.xml.
--- The error occurred while applying a result map.
--- Check the Category.categoryResult.
--- The error happened while setting a property on the result object.
--- Cause: java.sql.SQLException: Invalid state, the ResultSet object is
closed.
at
com.ibatis.sqlmap.engine.mapping.statement.MappedStatement.executeQueryWithCallback(MappedStatement.java:201)
at
com.ibatis.sqlmap.engine.mapping.statement.MappedStatement.executeQueryForObject(MappedStatement.java:120)
at
com.ibatis.sqlmap.engine.mapping.statement.CachingStatement.executeQueryForObject(CachingStatement.java:79)
at
com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForObject(SqlMapExecutorDelegate.java:518)
at
com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForObject(SqlMapExecutorDelegate.java:493)
at
com.ibatis.sqlmap.engine.impl.SqlMapSessionImpl.queryForObject(SqlMapSessionImpl.java:106)
at
org.springframework.orm.ibatis.SqlMapClientTemplate$1.doInSqlMapClient(SqlMapClientTemplate.java:273)
at
org.springframework.orm.ibatis.SqlMapClientTemplate.execute(SqlMapClientTemplate.java:209)
... 21 more
Caused by: com.ibatis.common.jdbc.exception.NestedSQLException:
--- The error occurred in com/demo/category/Category.xml.
--- The error occurred while applying a result map.
--- Check the Category.categoryResult.
--- The error happened while setting a property on the result object.
--- Cause: java.sql.SQLException: Invalid state, the ResultSet object is
closed.
at
com.ibatis.sqlmap.engine.mapping.statement.MappedStatement.executeQueryWithCallback(MappedStatement.java:201)
at
com.ibatis.sqlmap.engine.mapping.statement.MappedStatement.executeQueryForObject(MappedStatement.java:120)
at
com.ibatis.sqlmap.engine.mapping.statement.CachingStatement.executeQueryForObject(CachingStatement.java:79)
at
com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForObject(SqlMapExecutorDelegate.java:518)
at
com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForObject(SqlMapExecutorDelegate.java:493)
at
com.ibatis.sqlmap.engine.impl.SqlMapSessionImpl.queryForObject(SqlMapSessionImpl.java:106)
at
com.ibatis.sqlmap.engine.impl.SqlMapClientImpl.queryForObject(SqlMapClientImpl.java:82)
at
com.ibatis.sqlmap.engine.mapping.result.loader.ResultLoader.getResult(ResultLoader.java:75)
at
com.ibatis.sqlmap.engine.mapping.result.loader.LazyResultLoader.loadResult(LazyResultLoader.java:77)
at
com.ibatis.sqlmap.engine.mapping.result.loader.ResultLoader.loadResult(ResultLoader.java:54)
at
com.ibatis.sqlmap.engine.mapping.result.ResultMap.getNestedSelectMappingValue(ResultMap.java:501)
at
com.ibatis.sqlmap.engine.mapping.result.ResultMap.getResults(ResultMap.java:341)
at
com.ibatis.sqlmap.engine.execution.SqlExecutor.handleResults(SqlExecutor.java:384)
at
com.ibatis.sqlmap.engine.execution.SqlExecutor.handleMultipleResults(SqlExecutor.java:300)
at
com.ibatis.sqlmap.engine.execution.SqlExecutor.executeQuery(SqlExecutor.java:189)
at
com.ibatis.sqlmap.engine.mapping.statement.MappedStatement.sqlExecuteQuery(MappedStatement.java:221)
at
com.ibatis.sqlmap.engine.mapping.statement.MappedStatement.executeQueryWithCallback(MappedStatement.java:189)
... 28 more
Caused by: java.sql.SQLException: Invalid state, the ResultSet object is
closed.
at
net.sourceforge.jtds.jdbc.JtdsResultSet.checkOpen(JtdsResultSet.java:299)
at
net.sourceforge.jtds.jdbc.JtdsResultSet.next(JtdsResultSet.java:569)
at
org.apache.commons.dbcp.DelegatingResultSet.next(DelegatingResultSet.java:169)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
com.ibatis.common.jdbc.logging.ResultSetLogProxy.invoke(ResultSetLogProxy.java:47)
at $Proxy10.next(Unknown Source)
at
com.ibatis.sqlmap.engine.execution.SqlExecutor.handleResults(SqlExecutor.java:383)
at
com.ibatis.sqlmap.engine.execution.SqlExecutor.handleMultipleResults(SqlExecutor.java:300)
at
com.ibatis.sqlmap.engine.execution.SqlExecutor.executeQuery(SqlExecutor.java:189)
at
com.ibatis.sqlmap.engine.mapping.statement.MappedStatement.sqlExecuteQuery(MappedStatement.java:221)
at
com.ibatis.sqlmap.engine.mapping.statement.MappedStatement.executeQueryWithCallback(MappedStatement.java:189)
... 44 more
--
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